Others: STM32 MCUs related

helloWe have triyng to use LWID When we had the file #include "api.h" in my project we Have :compilation terminated.make[1]: *** [SourcesRV/subdir.mk:70: SourcesRV/TcpipManagement.o] Error 1make: *** [makefile:107: all] Error 2"make -j8 all" terminated with exit code 2. Build might be incomplete. The include file seams correct : In the projet wiever the files are présent :  please could you help meSalutations 

Hi,I want to program my STM32H753ZI Nucleo board with Simulink. I successfully programmed it to blink an LED. However, I get the following error when I try to enable a timer (for PWM, or Encoder). C:/ProgramData/MATLAB/SupportPackages/R2023b/toolbox/shared/supportpackages/stm32/src/rtiostream_serial.c:10:10: fatal error: rtiostream.h: No such file or directory   10 | #include "rtiostream.h"      |      ^~~~~~~~~~~~~~compilation terminated.gmake: *** [rtiostream_serial.o] Error 1 I have tried this with both CubeMx 6.4 and 6.10 (Matlab has recommended to use CubeMx 6.4.).I have also tried the STM32F446RE Nucleo board and the same error emerged.Any suggestions to solve this problem are highly appreciated. Thanks

Hello,i'm starting a project with STM32F407VG and ADAU1466 DSP. The ADAU1466 generates the MCLK for the audio codec (ADAU1701), so far so good.Now i'd like to implement full-duplex I2S communication between ADAU1466 and STM32 too using a different I2S port on the DSP. The idea is to set the STM32 as a slave receiver and let the DSP generate BCLK and LRCLK. In this context, do i need to provide master clock to STM32 too and if so, how? I mean, which pin should i use? For I2S2 i can see PC9 alternate function I2S_CKIN but i'm not sure if this is the proper way to provide external master clock. 

NUCLEO F411RE, MPU 9250 I'm reading acceleration data via SPI from an MPU 9250 directly to memory. This part is working for one off reads in a loop I can see my x, y, z values change in the debugger I would like to do FFT on the acceleration data but at the same time not interrupt the flow of data so I can know for sure the sampling frequency. I'm thinking having a constant stream via DMA into a circular buffer or possibly a dual buffer set up, read one buffer whilst the other is processed?    About the frequency - I'm unclear about how calculate this accurately. SPI1 is on the APB2 bus which has a default frequency of 16MHz. I have a function that requests the acceleration data (sends register address & a read flag) & waits for the data to be received which is 6 bytes, then does it all over again. So is my thinking right here, there's some over head for the actual request but the data is arriving in 3us (48/1600000) ~333KHz? Also, this is blocking isn't it (see mpu92

Hello ST Community,I’m currently working on a project where I’m using the STM32L475RGT6 MCU to interface with the BlueNRG-M2SA Bluetooth module via SPI. The goal is to establish BLE communication between the MCU and a mobile device. However, I’ve encountered a few challenges and would appreciate guidance or reference material.If anyone has:A working DTM firmware or BLE SPI reference for STM32L4 + BlueNRG-M2SAA minimal working .ioc + main.c + app_bluenrg_2.cAny tips on pin configuration, middleware integration, or BLE stack setup

I am trying to connect the stm32 EVK with CYW4373 Infineons wifi module to ustilise the stm32 wifi functionality in my project so i have downloaded the AIROC-WIFI-Bluetooth-STM32-release-v1.7.0 driver and imported the wifi_scan project in the stm32cubeide after importing that shows some errors after i am linking the required folders like wifi host driver and middleware related to freertos the errors gone but it is showing like this build system after linking all the files ,, how to do this interface with this driver or any other way is there please help me to overcome this task if any resources or documents are there please share me it will helpfull in my project 

I am new to working with STM32 boards. I am trying to use the STM32H573I-DK as an interface board for the EEMBC EnergyRunner software. i am flashed firmware for benchmark into interface boardWhen I run EnergyRunner, it scans the serial ports but fails to recognize the board as show in the image:  please guide me to fix the this issue thank you   

Hello, I am trying to interface STM32H7 microcontroller with SCL3300 inclinometer, I have attached the SPI configuration and the SPItransfer method. ConfigSPI_SCL3300() { // 52 PA6 SPI1_MISO // 151 PD7 SPI1_MOSI // 154 PG11 SPI1_SCK // 153 PG10 SPI_CS LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOA); LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOD); LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOG); //LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOC); LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1); LL_RCC_HSI_Enable(); LL_RCC_SetCLKPClockSource(LL_RCC_CLKP_CLKSOURCE_HSI); LL_RCC_SetSPIClockSource(LL_RCC_SPI123_CLKSOURCE_CLKP); LL_GPIO_InitTypeDef GPIO_InitStruct; /* SPI1 SCK GPIO pin configuration for PG11 */ GPIO_InitStruct.Pin = LL_GPIO_PIN_11; GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE; GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL; GPIO_InitStruct.Pull = LL_GPIO_PULL_DOWN; GPIO_InitStruct.Speed = LL_GPIO_SPEED_HIGH; GPIO_InitStruct.

Hi everyone,I’m planning to connect a 3-digit 7-segment common cathode display to my STM32 MCU. The display will be multiplexed, and I intend to use 2N2222 NPN transistors to switch each digit (common cathode). Each segment will have its own current-limiting resistor.For safety, I’m designing for If = 10 mA per segment instead of 20 mA. I’ve attached my resistor and transistor current calculations (see attachment). I used 3.3 V as Vcc, because GPIO Output HIGH is 3.3 V. Ignore resistor value on shematic.Could you please check if my calculations and connection approach are correct, and confirm whether using 2N2222 transistors is suitable in this case? I’m also a bit concerned whether 3.3 V will be enough to properly drive the display.  

Hallo everyone.I'm facing some difficulties  while trying to build LWM2M application on the board STM32L471 (FreeRTOS; I use I-CUBE-Anjay SDK pack).I cannot run my code on the board because of lack of RAM and FLASH.To choose another board is not an option.Has anyone had the same issue?Is there any other way to implement LWM2M objects on IoT device without using Anjay? 

I have implemented custom external flash loader using IAR workbench framework for STM32H750IBK6 and flash device IS25LP512M-JLLE. I am seeing my basic flash commands like read status, write enable are failing. if I use the same commands in my own test framework they are working fine, so my question is when using IAR framework for flash loader development what are the preconditions to follow.

Hi everyone, I'm new to the FPV hobby and I've run into a problem that I'm completely stuck on after a long day of troubleshooting. I would be incredibly grateful for some expert help. The Hardware: I have a generic clone flight controller sold as an "F4 V3S Plus". The main processor is an STM32F405. The Problem: The board was working perfectly fine out of the box and connected to Betaflight. I decided to update the firmware to the latest version. I followed the standard flashing procedure and enabled the "Full chip erase" option. Since erasing and flashing, I can no longer get the gyroscope to work. What I've Done So Far: I have successfully troubleshooted all the basic connection issues. I can successfully flash firmware in DFU mode. I can successfully connect to the Betaflight Configurator (VCP / COM port drivers are working correctly). When I connect, the 3D model of the drone in the Setup tab does not move when I tilt the board. The CLI status command confirms the NOGYRO a

Hi all,So, after almost half a year of arduous blood, sweat and tears I have managed to scrape together "something that works". It consists of a custom schematic and PCB powered by an STM32F042C6T6 and an Si4705 radio tuner (from Skylabs).The STM32 uses the internal clock circuitry that is configured as depicted here. The CRS sync source is not shown here, but it is set to USB, so that the chip runs completely without any external crystals. The USB 2.0 is full-speed since the STM32 is only full-speed:The Si4705 currently uses a precise, external 32,768 kHz crystal oscillator (SG-3030CM from Seiko) that only requires a by-pass capacitor. This crystal oscillator is not connected to the STM32 in any way.The tuner chip has a prescaler and precise REFCLK adjustment so it can, if required, support a frequency range from 31130 Hz up to 140,89 MHz. Currently these settings are in their default values due to the crystal oscillator.The STM32 commands the Si4705 via I2C, without DMA, and thi

Hi friends, I'm having a problem with my MKS Odrive Mini V1.0 board.I replaced the MCU because the old one had shorted out.The problem is this: the board is no longer recognized by USB.I'm trying to use an STLink, but I also don't have access to load the .hex file it comes with. I would need your help to try to flash the new MCU somehow.I was using both STM32CubeProgrammer and STM32Utility, but neither of them worked.

I generally don't open threads, but one recurring frustration I've had with Keil on CM0(+) platforms is with printf() going off the rails with "%.2lf"  "%.3lf" type formats.I've seen more often than I care for, a situation where code working elsewhere fails with massive format failures, where it wants to prints tens of digits before/after the decimal point, and where it seems it trashes it own environment.It's gone away for the moment, with me making the stack as large as possible, I think I had a 1500 byte stack, it was using less the 940 bytes according to the high/low water mark analysis I did. So I'm a little skeptical that is the underlying issue.I'm using a G031 today, but seen on L011 too. Have seen in past issues with locale, heap and stack collide.Another annoyance is with "unsigned long" becoming 64-bit on the v6 compiler, and also with structure size alignment. Anyway, looking to read the temperature in the room (figuratively), and see if others have seen this beha

Hello everione!I’m working on a project where I need to measure the total harmonic distortion (THD) of voltage and visualize its harmonics. The fundamental frequency is 50Hz. I’m relatively new to STM32, and I’d appreciate any guidance on libraries or tools I could use for this task, or if there are any similar projects that could serve as a starting point. I appreciate any suggestions or resources you can share, thanks.

Hello everyone,I want to use a C05300 based display with DSI. I can write and read in LP mode, but not in HS mode. I guess it's a timing problem.As seen from datasheet, UI should be more than 2ns, so I use a 500MHz bit clock.I use 24 bit data format to send data over DSI, so Pixel Clk = 480 x 2 / 24 = 40 MHz. I there something I miss?

Hello,   I work with a STM32L031K6TxLQFP32. I can already send a SMS by connecting a SIM card.  Can someone tell if I can control a SIM card, so I can send and received an Email or, if it doesen't work, because of what value it would fail?Thanks in advance.#stm32#email

Hello,I am using STM32L496VGT6 with COMP1 and COMP2 to monitor the output voltage of a pressure transmitter. The MCU operates in STOP1 mode most of the time, where the comparator behaves correctly.However, in RUN mode, whenever the SX1262 LoRaWAN module transmits or opens RX1/RX2 slots, I see continuous false edges from the comparator:If 0.255 < Vin < VL (0.275 V) → I get continuous falling edges.If VL < Vin < VH (0.55 V) → I get continuous rising edges.This only happens during LoRaWAN TX or RX windows, not during idle. Log :  **comp2 Falling edge TX on freq 866585000 Hz ...**comp1 Rising edge RX_1 on freq 865062500 HzWhat I tried:COMP configured with medium/high hysteresis.Added blanking source using TIM3 OC channels, started before Radio TX/RX and stopped after.Added RC filter (10 kΩ + 10 µF) at COMP input. Still see one false edge every TX/RX.In STOP1 mode: comparator works fine (only one edge when Vin actually crosses threshold).In RUN mode: false ed

I'm trying to read data from my MPU-6050 (a 3-axis accelerometer and gyroscope from DFRobot) using an STM32F103RB microcontroller, but I'm running into an issue.The sensor communicates via I2C. It's powered by 3.3V from the STM32, and I've used  once 1,2kΩ and other time 10kΩ pull-up resistors on the SDA and SCL lines to 3.3V.During program debugging, the sensor is left completely stationary. However, in the "Live Expressions" view, the raw values from the sensor are inconsistent. The values for the corresponding accelerometer and gyroscope axes are always the same, which seems strange.Here are the raw readings from the first few reads:First Read:Accel_X_RAW & Gyro_X_RAW: -4017Accel_Y_RAW & Gyro_Y_RAW: 32Accel_Z_RAW & Gyro_Z_RAW: 30476Second Read:Accel_X_RAW & Gyro_X_RAW: 0Accel_Y_RAW & Gyro_Y_RAW: 0Accel_Z_RAW & Gyro_Z_RAW: -1280Third Read:Accel_X_RAW & Gyro_X_RAW: -1280Accel_Y_RAW&n

We're experiencing memory overflow errors when trying to use external PSRAM (IS66WVE4M16EALL-70BLI) with GPDMA for real-time audio capture on STM32H562AII6. Despite having 8MB external PSRAM, our audio buffers cannot be placed there due to DMA timing/access issues.Hardware ConfigurationMCU: STM32H562AII6 (UFBGA169)Internal RAM: 640KBFlash: 2MBRunning at: 250MHz (HCLK)External PSRAM: IS66WVE4M16EALL-70BLICapacity: 8MB (4M × 16-bit)Access Time: 70nsInterface: FMC Bank 1 (16-bit async SRAM mode)Base Address: 0x60000000Application: Real-time Audio CaptureAudio ADC: PCM1862 (I2S master, 48kHz stereo, 16-bit)STM32 SAI: Slave mode receiving audio via GPDMABuffer Requirements: ~416KB total for audio buffersWe need guidance on whether external PSRAM via FMC is suitable for real-time GPDMA applications on STM32H562, and if so, what the optimal configuration should be. If not, recommendations for alternative approaches would be greatly appreciated.Any insights into proper FMC timing, cache manage

Hello, I’m trying to read temperature from some NTC10k sensors using a NUCLEO-H7S3L8 board. The datasheet says it has 14 ADC channels available, but I’m not sure how to wire the sensors correctly. I am using all channels in single ended modeEach sensor is a simple 2-wire heat-dependent resistor (variable resistance in ohms). They don’t have their own power supply and only change resistance with temperature. My questions are:How do I need to wire the NTC10k to an ADC channel so that the MCU can actually measure something?Do I need a voltage divider or extra resistor in the circuit?If I want to connect several of these sensors (up to 14), do I need one resistor per sensor, or is there a simpler way?Thanks in advance.

Hi,I tried to connect a LoRa module to an STM32 controller using LPUART1. I am using HSI as the clock source and have configured PB10 and PB11 as UART RX and TX, respectively. However, I am not receiving any data while using the HAL driver API. In the Arduino IDE, I used the dedicated library for my LoRa module, and it worked.Could anyone please explain why I am facing this issue and why I cannot replicate the same functionality in STM32CubeIDE? Note Baud rate is 9600Thanks.

I’d like to understand the practical trade-offs — for example, how each level influences execution speed, flash usage, and RAM consumption. Also, are there any best practices or common pitfalls when choosing an optimization level for STM32 projects?

Hi Team How can I implement the ADAS1000 ECG sensor with an STM32 board to acquire ECG waveforms using 3 leads, and how do I read the data from the sensor leads?